Radiant



I a G. A. HOFFMAN RADIANT Filed March 26, 1925 Patented Dec. 22, 1925.

umrsosrArl-zs PATENT OFFICE.

GEORGE n. HOFFMAN, or MANSFIELD, OHIO, assienon r'o THE NEW METHOD srovn COMPANY, or MANSFIELD, 011:0.

RADIANT."

Application filed March 26, 1925. Serial No. 18,524.

To all whom c't'm-ag con cern:

Be it known that I, GEORGE A. HOFFMAN, a citizen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in ltadiants; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

Gas heaters of the type embodying radiants to contain the flaming fuel from the subj acent burner, commonly have their front sides formed of fretwork, and the flame often projects through the openings of. this fretwork, so that some of the products of combustion can escape from the open front of the heater instead of traveling to the upper end of the heater casing, which is usu ally vented. It is the object of my invention to provide a new and improved form of a radiant, so constructed as to direct the flame and products of combustion away from the openings, at the same time inducing the entrance of air through these openings. This abundant amount of air is particularly advantageous in cases where, the fuel mixture is too rich, as it then insures combustion of fuel which would otherwise escape and cause the heater to discharge a great amount of carbon monoxide gas.

It is a further object of the invention to provide a radiant in which provision is made permitting the free escape of the products of combustion from the upper end of the ra diant, so that they may travel directly to the vent of the heater casing, without danger of escaping through the open front of such casing.

With the foregoing in View, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Figure 1' is a front elevation.

Fig. 2 is a side elevation.

Fig. 3 is a vertical sectional view on the irregular line 3-3 of Fig. 1.

Fig. 4 is a horizontal section on the irregular line H of Fig. 1.

Fig. 5 is a view similar to a portion of Fig. 3 and illustrating a slightly different construction.

In the drawings above briefly described,

the numeral 1 designates a hollow body havmg the usual inlet'or inlets 2 at its lower end, and preferably provided at its upper end with a projecting lip 8 which assists in securing t in place in a heater casing. I

- One side wall, preferably the front of the radiant, is in the construction herein disclosed, of substantially zig-zag form in longitudinal section, providing it with a plurality of outwardly projecting angular portions a. The lower side 5 of each ofthese angular portions, is formed with a plurality of openings 6, preferably so located as to produce a fretwork formation. The up per side 7 of each angular portion 4, is'imperforate, and these imperforate portions constitute inwardly extending deflectors over the openings 6. These deflectors serve to direct the flame and products of combustion inwardly away from the openings 6 to prevent their discharge therethrough, and at the same time they induce the entrance of air into the radiant through said openings, this being of great advantage, if the mixture of air and gas, forming the fuel, is too rich, as it promotes combustion and insures that the heater shall not generate and discharge a large quantity of carbon monoxide.

Provision is made for permitting free escape of the products of combustion from the upper end of the body v1, and in the present showing the upper extremity of the front wall of said body inclines inwardly as indicated at 8, this inclined portion being joined to the upper side 7 of the uppermost angular portion 4, and being formed with unguarded openings 9. Through these openings, the products of combustion may escape to the usual vent of the heater casing, without danger of discharge through the open front of said casing.

In the foregoing, I have jointly described the constructions shown in Figs. 1 to 4 and in Fig. 5, as these constructions are substantial duplicates, the only difference being that in Fig. 5, the zigzag wall of the radiant, has its angular portions transversely curved to some extent, whereas they are sharp in the form of construction illustrated in Figs. l to 4. Either form of construction may be used to advantage, but that'disclosed in Figs. 1 and 4 is preferable.

It will be seen from the above that I have provided a greatly improved form of radiant, which will effectively overcome difficulties heretofore existing, and while excellent results are obtainable from the'details disclosed, I wish it understood that within the scope of the invention as claimed,,nu Inerous modifications may be made.

I claim: V

1. A radiant comprising a hollow body provided with openings at spaced points in its front wall, and internal deflectors over said openings for directing flame and products of combustion inwardly away fromsaid openings and inducing the entrance of air therethrough.

2. A radiant comprising a hollow body provided with vertically spaced fretwork portions in its front wall, and internal deflectors over said fretwork portions for defleeting flame and products of combustion inwardly therefrom and inducing the en trance of air therethrough.

3. A radiant comprising a hollow body having a front wall of substantially zig-zag form in longitudinal section, the lower side fiectors for directing flame and products of combustion inwardly away from the openings and inducing entrance of air through said openings.

' :4. A structure asspecified in claim 1; the upper end of the bodyhaving a free escape for the products ofc'ombustion.

5. A structure as specified in claim 3; the

upper end'of said body having a free escape for the products of combustion.

6. A structure as specified in claim 3; said front wall having an inwardly inclined upper extremity joined to "the'upper-most of said angular portions and formed with openings through which products of combustion may escape.

In testimony whereof I have hereunto affixed myjsignature.

I GEORGE A. HOFF N. 

